Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98814f807d54b62…

MALICIOUS

PDF

33.1 KB Created: 2020-05-30 13:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 73cac3bace44c0fa3235f9886ca83f2a SHA-1: f690047381b066a68fdb6540a694483c16805003 SHA-256: f98814f807d54b6218db01c152be84643a8553ce8220f23f0725a7f7a92ad8b3
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The document body and embedded links suggest a lure for downloading software, specifically mentioning 'sony hybrid handycam dcr-dvd610 software free download'. This pattern is indicative of SEO spam or a phishing attempt to direct users to malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://liberiasfinestapparel.shop/uploads/1/3/1/6/131636972/131636972.html#sony+hybrid+handycam+dcr-dvd610+software+free+download PDF link annotation
    • http://galaxygaming.org/uploads/1/3/0/5/130550986/lirananira_kelasoralexeze_wuluseper.pdfIn PDF document text
    • http://internetnederland.nl/uploads/1/3/1/4/131437172/worakawajisen.pdfIn PDF document text
    • http://artshackstudiopottery.com/uploads/1/3/0/3/130313588/4694696.pdfIn PDF document text
    • http://franceswatkinsartist.com/uploads/1/3/0/6/130639808/a04d4.pdfIn PDF document text
    • http://singinglessonsbyjoliebeth.com/uploads/1/3/1/4/131454466/xuxabawot.pdfIn PDF document text
    • http://amapanitian.net/uploads/1/3/1/4/131436972/rodasarusesoxipoba.pdfIn PDF document text
    • http://jollierodney.com/uploads/1/3/0/5/130551342/2500607.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5773 10212 bytes
SHA-256: 1fc90d93571bc772ffe1b4ac3edb3bed1895dde42d329d9c8dbc2bdffebde7e9

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